466 RHYNCHOPHORA. 
rather convex, broader than long, narrow in front, rounded at the sides anteriorly ; closely, coarsely 
punctate, except along the smooth median line. Scutellum small, transverse, concave. Elytra at the 
base considerably wider than the prothorax, gradually narrowing from the rather prominent rounded 
humeri, strongly undulate on the disc ; deeply punctate-striate, the interstices broad, rather coarsely and 
closely uniseriatie-punctate, 3 with an irregular double row of punctures. Pygidium with indications of 
a transverse suture between it and the last dorsal segment. Beneath closely, the middle of the abdomen 
sparsely, punctate ; first ventral segment broadly excavate, the fifth broadly arcuate-emarginate at the 
apex and with a small smooth prominence in the centre of the emargination. Tibie almost straight. 
Length 42, breadth 22 millim. 
Hab. Mexico (Mus. Brit.). 
One male, incorrectly named B. plicata, Schénh., in the British Museum. Less 
elongate and smaller than in B. fluctuosa, the prothorax less rounded at the sides, the 
third elytral interstice only with an irregular double row of punctures, the fifth 
ventral segment (3 ) not semicircularly excised on either side of the smooth median 
prominence at the apex. ‘The seriate punctures on the elytra each bear an excessively 
minute scale. 
18. Baris aspera, sp.n. (Tab. XXIII. figg. 3, 3a, b, ¢.) 
Oblong-ovate, shining, seneous; the elytra somewhat thickly clothed with rather coarse, intermixed brown 
and whitish, setiform scales (fig. 3 6), the under surface and legs with small narrow whitish, and the sides 
of the prothorax with fulvous. scales. Head closely punctate, transversely grooved between the eyes ; 
rostrum short and stout, strongly arcuate, not so long as the prothorax, closely punctate, smoother at the 
tip. Prothorax transverse, rounded at the sides anteriorly, feebly constricted in front ; closely, coarsely 
punctate, except along the smooth median line. Scutellum small, somewhat rounded. Elytra con- 
siderably wider than the prothorax, gradually narrowing from the rather prominent humeri, more or 
Jess undulate on the disc; narrowly striate, the interstices broad, flat, closely and somewhat coarsely 
seriate-punctate, becoming transversely rugose towards the sides, 2-4 usually with an irregular double 
row of impressions. Beneath closely, the abdomen sparsely, punctate. Tibiz almost straight. 
3. First ventral segment slightly hollowed down the centre, the fifth with a very small subangular 
prominence at the middle of the apical margin ; pygidium connate with the last dorsal segment. 
Length 3-43, breadth 14-2} millim. (d 2.) 
Hab. Mexico (coll. Solari); GuateMALa, Guatemala city (Salvin, Champion), 
Aceytuno (Salvin), Duefias, Capetillo, Zapote (Champion) ; Costa Rica, Caché 
(Rogers). 
Found in numbers in Guatemala. An oblong, eneous form, with a somewhat 
abundant, intermixed white and brown, setiform vestiture on the elytra, &c. In the 
smaller examples there is but a single row of punctures on the elytral interstices. 
The single specimen (6) from Custa Rica has a still more coarsely punctured 
prothorax, and it may not really belong to the same species. 
19. Baris tortilis, sp.n. (Tab. XXIII. figg. 5, 5a, °.) 
Oblong-ovate, somewhat flattened above, shining, eeneo-piceous ; the punctures on the elytral interstices each 
bearing an extremely minute, and those on the under surface and legs a slightly larger, setiform scale. 
Head very sparsely, minutely punctate, deeply, transversely grooved between the eyes; rostrum stout, 
. very short, abruptly bowed from near the base and flattened at the tip, very sparsely, minutely punctate. 
